dmaengine: mmp-pdma: Split device_control

Split the device_control callback of the Marvell MMP PDMA driver to make use
of the newly introduced callbacks, that will eventually be used to retrieve
slave capabilities.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/mmp_pdma.c

@@ -683,29 +683,16 @@ mmp_pdma_prep_dma_cyclic(struct dma_chan *dchan,
 	return NULL;
 }
 
-static int mmp_pdma_control(struct dma_chan *dchan, enum dma_ctrl_cmd cmd,
-			    unsigned long arg)
+static int mmp_pdma_config(struct dma_chan *dchan,
+			   struct dma_slave_config *cfg)
 {
 	struct mmp_pdma_chan *chan = to_mmp_pdma_chan(dchan);
-	struct dma_slave_config *cfg = (void *)arg;
-	unsigned long flags;
 	u32 maxburst = 0, addr = 0;
 	enum dma_slave_buswidth width = DMA_SLAVE_BUSWIDTH_UNDEFINED;
 
 	if (!dchan)
 		return -EINVAL;
 
-	switch (cmd) {
-	case DMA_TERMINATE_ALL:
-		disable_chan(chan->phy);
-		mmp_pdma_free_phy(chan);
-		spin_lock_irqsave(&chan->desc_lock, flags);
-		mmp_pdma_free_desc_list(chan, &chan->chain_pending);
-		mmp_pdma_free_desc_list(chan, &chan->chain_running);
-		spin_unlock_irqrestore(&chan->desc_lock, flags);
-		chan->idle = true;
-		break;
-	case DMA_SLAVE_CONFIG:
 	if (cfg->direction == DMA_DEV_TO_MEM) {
 		chan->dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC;
 		maxburst = cfg->src_maxburst;
@@ -740,10 +727,25 @@ static int mmp_pdma_control(struct dma_chan *dchan, enum dma_ctrl_cmd cmd,
 	 */
 	if (cfg->slave_id)
 		chan->drcmr = cfg->slave_id;
-		break;
-	default:
-		return -ENOSYS;
-	}
+
+	return 0;
+}
+
+static int mmp_pdma_terminate_all(struct dma_chan *dchan)
+{
+	struct mmp_pdma_chan *chan = to_mmp_pdma_chan(dchan);
+	unsigned long flags;
+
+	if (!dchan)
+		return -EINVAL;
+
+	disable_chan(chan->phy);
+	mmp_pdma_free_phy(chan);
+	spin_lock_irqsave(&chan->desc_lock, flags);
+	mmp_pdma_free_desc_list(chan, &chan->chain_pending);
+	mmp_pdma_free_desc_list(chan, &chan->chain_running);
+	spin_unlock_irqrestore(&chan->desc_lock, flags);
+	chan->idle = true;
 
 	return 0;
 }
@@ -1061,7 +1063,8 @@ static int mmp_pdma_probe(struct platform_device *op)
 	pdev->device.device_prep_slave_sg = mmp_pdma_prep_slave_sg;
 	pdev->device.device_prep_dma_cyclic = mmp_pdma_prep_dma_cyclic;
 	pdev->device.device_issue_pending = mmp_pdma_issue_pending;
-	pdev->device.device_control = mmp_pdma_control;
+	pdev->device.device_config = mmp_pdma_config;
+	pdev->device.device_terminate_all = mmp_pdma_terminate_all;
 	pdev->device.copy_align = PDMA_ALIGNMENT;
 
 	if (pdev->dev->coherent_dma_mask)